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Electrolux FDB1050RE 2005, Service Manual

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Electrolux FDB1050RE 2005 Service Manual Download Page 7

6

WATER DISTRIBUTION COMPONENTS

WASH MOTOR

Both wash systems will use the same motor, a
120VAC fed DC brush style motor. This motor has a
built-in rectifier to change the AC voltage to DC. The
wash motor provides water under pressure for
spraying as well as turning the spray arms.

UPPER SPRAY ARM

PRECISION WASH

The upper spray arm hangs from a bracket that
snaps into the upper rack.  Water is supplied to the
upper arm from the sump by a delivery tube to the
top of the tub entering a nozzle water then is sprayed
into a funnel in the center of the upper rack under
which is the upper spray arm.  As water enters the
spray arm, the holes are set to cause the arm to turn.

PRECISION DIRECT

The center spray arm is mounted to a delivery tube
on the under side of the upper rack.  This assembly
moves in and out with the rack.  On the rear of the
delivery tube is a bellows which acts as a seal
between the delivery tube and the rear wall of the tub.
When water under pressure enters the spray arm /
delivery tube assembly, the bellows expands insuring
there is no loss of water pressure for turning the
center spray arm. The Precision direct models also
have a shower nozzle mounted to the top of the tub.
This nozzle sprays water down onto the upper rack as
the center arm is turning.

LOWER SPRAY ARM

The lower spray arm rotates on a lower spray arm
support.  The lower arm has two functions: washing
the dishes in the lower rack and cleaning off the top
of the filter.  Jets on top of the spray arm propel the
arm while spraying water into the lower rack.   On the
bottom side of the lower arm are three legs.  The two
out side legs will spray across the top of the filter
moving dislodged food partials to the center of the
filter.  The third leg is mounted closer to the center of
the filter this leg sprays water down into a center filter
basket to help move this loosened food to the back
section of the sump to be removed in the drain cycle.

Delivery Tube

Spray arm

Funnel

Mount

Spray arm

Heat shields

Legs for cleaning filter

Summary of Contents for FDB1050RE 2005

Page 1: ...5995436341 May 2005 White Westinghouse SERVICE MANUAL 2005 Dishwashers PRECISION SELECT ELECTRONIC CONTROLS MODELS ELECTROLUX MAJOR APPLIANCES NORTH AMERICA FDB1250RE FDB1050RE ...

Page 2: ...use Turn off the gas supply Turn off the water supply 3 Never interfere with the proper operation of any safety device 4 USE ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE SUBSTITUTIONS MAY DEFEAT COMPLIANCE WITH SAFETY STANDARDS SET FOR HOME APPLIANCES 5 GROUNDING The standard color coding for safety ground wires is GREEN or GREEN with YELLOW STRIPES Ground leads are not to be used as curren...

Page 3: ...ormalWash 10 Light EconoWash 10 UpperRack 10 Rinse Only 10 Glasses 10 ElectronicControl 10 Options 10 Sanitize Rinse 10 Hi TempWash 10 HeatedDry 10 Delay Start 11 Start Cancel 11 DISASSEMBLY AND SERVICE Safety Precautions 12 ControlPanel 12 Precision Select Electronic Control 12 Vent Housing Assembly 12 DoorLatch 13 Detergent RinseAidDispenser 13 DoorSeal 13 UpperRack 13 Center Spray Arm Precision...

Page 4: ...OTING TIPS 17 TECHNICAL SPECIFICATIONS 19 EXPLODED VIEW DIAGRAMS A1 Model FDB1050RE ControlPanel A2 Door A3 Tub A4 Motor Pump A5 Frame A6 Racks A7 Model FDB1250RE ControlPanel A8 Door A9 Tub A10 Motor Pump A11 Frame A6 Racks A12 SERVICE DATA SHEETS 154547801 ModelsFDB1250RE BSQ0 B1 154547901 ModelsFDB1050RE BSQ0M B3 ...

Page 5: ... start pad Pressing this pad multiple times will increase the number of hours the start of a cycle is delayed When using this option the Start Cancel pad is not pressed Operation of the control and testing will be covered in later sections WASH SYSTEMS PRECISION SELECT CONTROL Dishwasher models incorporating either the Preci sion or the Precision Direct wash systems can be adapted to use this Prec...

Page 6: ...tlet leading to the center arm and the upper rack Water sprayed from the center spray arm sprays both into the upper rack and down onto the lower rack At the same time the shower nozzle in top of the tub sprays water down onto the upper rack To return spray to the lower spray arm the pump is paused for 3 seconds This longer pause allows all of the water to drain back into the sump from the deliver...

Page 7: ...ry tube and the rear wall of the tub When water under pressure enters the spray arm delivery tube assembly the bellows expands insuring there is no loss of water pressure for turning the center spray arm The Precision direct models also have a shower nozzle mounted to the top of the tub This nozzle sprays water down onto the upper rack as the center arm is turning LOWER SPRAY ARM The lower spray a...

Page 8: ...p On the Precision Direct system the drain pump is mounted directly to the front of the sump Water enters the front of this pump by a short connecting hose to the rear of the sump area Both pumps are dual directional so it can run either clockwise or counter clockwise The front cover of either pump can be removed if needed for cleaning DRYING SYSTEM Drying dishes in these models is accomplished wi...

Page 9: ... raises over 200 F It will reset after the tub temperature drops below 100 F This is to protect the dishwasher tub tub is over filled for any reason Water from the water valve enters the tub from the left side through an air gap mounted to the side of the tub DISPENSING SYSTEM The dispenser assembly combine two dispensers using one common wax motor actuator One dis penser is for wash detergent the...

Page 10: ...an extend far enough in 30 seconds to release the cover to dis pense the detergent The extra time is needed to position the opposite end of the pivot arm to later dispense the rinse aid Power is removed from the wax motor for the plunger retrace A spring on the pivot arms returns it to the normal horizontal posi tion As the detergent cover is released on the opposite end of this pivot arm a pin mo...

Page 11: ... at the disconnect block inside the door without removing the console To start the Water Service Test all cycles must be cleared and all of the lights out on the console turn the Cycle Selector to the Rinse Only setting press and hold the Heat Dry and the Start Cancel pads OPTIONS All of the options pads are part of the electronic control and are changed with the control Sanitize Rinse When this o...

Page 12: ... 1 1 1 1 0 0 7 DRAIN 90 0 0 1 0 0 1 0 0 0 8 DRY 90 0 0 1 1 0 0 0 1 0 TOTAL 448 0 0 0 1 CLEAN LED and SANITIZED LED stay on until door is opened or cycle started Prior to a cycle being started a Delay start can be selected To select a delay Start tapping the pad will advance the control through the time of delay for this model Once the delay time has been selected the count down will begin To cance...

Page 13: ...r and slide the door panel down and outward to remove 6 Remove the six screws mounting the control panel to the inner door DAIL O MATIC ELECTRONIC CONTROL 1 Disconnect the dishwasher from electrical supply 2 Remove knob from selector by pulling straight off 3 Remove outer door panel 4 Separate wire connection at control 5 Remove console 6 On top of control case pull back plastic clip holding contr...

Page 14: ...lly push dispenser into the tub DOOR SEAL UPPER RACK 1 To remove rack unsnap and remove retainers at end of metal track Once retainers are removed pull rack straight out 2 Each track roller is secured with a T 25 TORX bolt When reinstalling the roller care must be taken not to cross thread the screw opening in tub 1 Door seal just pulls out of channel around tub 2 To replace find center of gasket ...

Page 15: ... 3 Gain access to valve remove wiring water line and fitting from valve 4 Water valve is secured with two screws DRAIN PUMP Precision Wash 1 Disconnect the dishwasher from electrical supply 2 Gain access to drain pump remove wiring and hoses from pump Dishwasher may need to be pulled forward to access drain pump 3 Pump is mounted with two screws through mounting bracket Drain hose Connector hose M...

Page 16: ...unscrew and remove nozzle in top of tub holding tube in place Nozzle unscrews counter clockwise 2 Loosen clamp on sump and remove tube 1 With dishwasher removed from under counter top unscrew and remove shower nozzle in top of tub Nozzle unscrews counter clockwise 3 Insert small screwdriver into top hole of pump mount on front of sump push down on screw driver to release top mounting hook pull top...

Page 17: ... rear port of the sump 5 Pump and motor assembly is secured in place using four retainers that will turn into sump to release from tub Push sump into tub then by rotating to the right will aid in clearing wash pump and drain pump as sump is lifted out Lift sump to the 2 00 position to remove 4 Disconnect delivery tube and sump drain hose Sump retainer Delivery tube and clamp Hose from sump to drai...

Page 18: ...ot running check for 1 Check resistance of motor windings or dishwasher is not power to drain pump this can be 25ohms No reading replace pump done at pump or at control disconnect pin location 8 2 No power to drain pump 2 Replace control 3 Locked up pump impeller 3 Check and remove blockage 4 Broken or loose wire 4 Repair or replace wire or connector Will not fill 1 Check for water to dishwasher 1...

Page 19: ...be 120 F before starting cycle 2 Check water hardness 2 Water hardness determents how much detergent is needed 3 Check water level in tub 1 2 gallons needed 3 See not filling section to locate problem 4 Racks not loaded properly 4 Instruct user in proper loading 5 Spray arm not turning free 5 Spray arm warped or bowed replace arm 6 Check filter 6 Clean or replace filter Dishes not dry 1 Heated dry...

Page 20: ... Sanitize 155 F 5 F Hi Limit Thermostat 200 F 200 F COMPONENT RESISTANCE ohms Heater Element 9 28 9 28 Pump motor N A N A Vent Actuator N A N A Dispenser 1928 1928 Drain Motor 28 28 Water Valve Solenoid 699 699 WATER SUPPLY Minimum Incoming Water Temperature 120 F 120 F Pressure min max psi 20 120 20 120 Connection NPT 3 8 3 8 Normal Cycle Water Consumption gal 4 9 9 7 4 9 9 7 Water Valve Flow Rat...

Page 21: ...A1 EXPLODED VIEW DIAGRAMS Model FDB1050RE ControlPanel A2 Door A3 Tub A4 Motor Pump A5 Frame A6 Racks A7 Model FDB1250RE ControlPanel A8 Door A9 Tub A10 Motor Pump A11 Frame A6 Racks A12 ...

Page 22: ...A2 Vent Assembly Control Module Control Panel Control Panel Insert Control Knob CONTROL PANEL FOR FDB1050RE ...

Page 23: ...A3 Door Door Hinge Support Bottom Door Gasket DOOR FOR FDB1050RE Dispenser Arm Assembly RH Inner Door Assembly Latch Assembly Arm Assembly LH Linkage Door Spring Nut Clamp ...

Page 24: ...A4 Drain Hose Tub Assembly Tub Gasket Water Inlet Tubing Clamp Float Tub Rollers Door Strike TUB FOR FDB1050RE Float Switch Assembly Thermostat Thermostat Retainer Tub Rollers ...

Page 25: ...m Sump Housing Lower Spray Arm Delivery Tube Delivery Tube Gasket 3rd Level Spray Arm Nozzle Heater Heater Bracket Volute Cover Sump Gasket Clamp Soil Director Base Drain Pump Assembly Check Ball Polypro Filter Hose Spray Arm Support Soil Director Filter Glass Trap O Ring Front O Ring Rear ...

Page 26: ...A6 FRAME FOR FDB1050RE FDB1250RE Water Valve Front Frame Brace Junction Box Cover Toeplate Kickplate Assembly Leveling Screw ...

Page 27: ...A7 Wheel Bracket Assembly Lower Rack Assembly Funnel Funnel Base RACKS FOR FDB1050RE Silverware Basket Slide Cap Rack Slide Upper Rack Assembly Slide Cap Wheels Basket Handle ...

Page 28: ...A8 Vent Assembly Control Module Control panel Control Panel Insert Control Knob CONTROL PANEL FOR FDB1250RE ...

Page 29: ...A9 Door Door Hinge Support Door Gasket DOOR FOR FDB1250RE Dispenser Arm Assembly RH Door Assembly Liner Latch Assembly Nut Clamp Arm Assembly LH Linkage Door Spring ...

Page 30: ...A10 Drain Hose Tub Assembly Tub Gasket Water Inlet Tubing Clamp Float Rollers Rollers Door Strike TUB FOR FDB1250RE Float Switch Thermostat Thermostat Retainer ...

Page 31: ...nter Spray Arm Delivery Tube Gasket Soil Director base Volute Cover Check Ball Glass Trap Spray Arm Support Soil Director Filter Polypro Filter Sump Housing Sump Gasket Heater Bracket Heater Motor Motor Bracket O Ring Rear O Ring Front Hose Clamp Drain Pump Retainer Grommet ...

Page 32: ...A12 RACK FOR FDB1250RE Slide Cap Nameplate Rack Slide Rack Slide Upper Rack Slide Cap Wheels Cup Shelf Silverware Basket Handle Wheel Lower Rack Cover ...

Page 33: ...B 1 ...

Page 34: ...eat thermistor located on the bottom of the pump and rotating the four sump retainers toward the middle of the sump Pump Assembly The pump assembly is driven by a synchronous motor Rotation is in the counterclockwise direction at 3600 RPM The motor drives a pump which supplies 100 percent filtered water at a rate of approximately 12 GPM to one spray arm at a time The spray arm s operation is alter...

Page 35: ...B 3 ...

Page 36: ... motor Rotation is in the counterclockwise direction at 3600 RPM The motor drives a pump which supplies 100 percent filtered water at a rate of approximately 12 GPM to one spray arm at a time The spray arm s operation is alternated by small pauses of the motor during the wash cycle Draining is accomplished by using a small separate synchronous drain pump mounted to the side of the sump The drain p...

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